Backup files from $HOME/backup directory and

md5sum_duplicates_remover.sh

#!/bin/bash

bkp_dir="$HOME/backup"
now="$(date +'%Y%m%d')"

tar cfJ $HOME/backup/"${now}"_scripts.tar.xz "$HOME"/scripts/ &> /dev/null

# Evaluates the md5sum of the most recent backup and compares its md5sum against the other files in the same directory. If the md5sum is the same removes the duplicated file
md5sum_now=$(md5sum "$bkp_dir"/"${now}"_scripts.tar.xz | awk '{ print $1 }')

for filename in $bkp_dir/*.tar.xz;
do
        if [[ "$md5sum_now" == $(md5sum "$filename" | awk '{ print $1 }') ]] && [[ "$filename" != "$bkp_dir"/"${now}"_scripts.tar.xz ]]
        then
                rm "$filename"
        fi
done